12402423143 has 4 divisors (see below), whose sum is σ = 13529916168. Its totient is φ = 11274930120.

The previous prime is 12402423113. The next prime is 12402423259. The reversal of 12402423143 is 34132420421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12402423143 - 2¹⁸ = 12402160999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402423113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563746496 + ... + 563746517.

It is an arithmetic number, because the mean of its divisors is an integer number (3382479042).

Almost surely, 2^12402423143 is an apocalyptic number.

12402423143 is a deficient number, since it is larger than the sum of its proper divisors (1127493025).

12402423143 is a wasteful number, since it uses less digits than its factorization.

12402423143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127493024.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12402423143 its reverse (34132420421), we get a palindrome (46534843564).

The spelling of 12402423143 in words is "twelve billion, four hundred two million, four hundred twenty-three thousand, one hundred forty-three".